Wrench.



RDEK.

WRENCH.

APPLICATION FILED TBB. 6, 1914. 1, 1 09,282. Patented Sept.v 1, 1914.

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fe/7mm, @M MA/#ml @wozu ma l To all automat may concern:

UNITED 'FERDINNDNDEAK,`ormomino, OHIO.`

` "Wannen i i Application filed FebruaryG, 191515.I Serial No. 816,962. y

l y*Specieation cf'iIettersPatenti,ilv 1., 1914:.

Be it known thatV I, FRDINND lDEK,

a subject of the King of Hungary, residing at Toledo, in the county ofLucas and State of Ohio, have invented certain new and useful Improvements in Wrenches, .of which. the following is a specification.

This invention relates tok improvements in self-locking quick action wrenches.v An object of theinvention is the provilsion of a hand wrench having a movable jaw so mounted thereon as tobe readilyA moved into engagement with the work, and upon such engagementtherewith to be firmly locked in the gripping'position automatically. Y u j A further object is to provide a freely movable wrench jaw with two members pivoted thereto coperating in locking said jaw` into engaged position withfthe work.

A still further object )is to provide .wrench which iseasily yand inexpensively I partsY hereinafter -fully described, illustrated f manufactured and atthey same time incorporates added eiiciency in its rapid adjustment and automatic locking features, and which shall be capable of grasping all kinds of Awork surfaces, suchk as tubes and pipes,

without slipping.

` With these objects in view and lothers thatl will appear as the'nature of the invention is better understood, the same consists 1n the novel combination and 'arrangement of in the accompanyingl drawings, and vpointed out in the appended claims. f i f;

In the drawings forming a part of this application and in which like designating characters refer to corresponding .parts throughout the yseveral views -Figure 1 `is a side elevation of the wrench ylocked `in engagement with a bolt nut. Fig. 2 is a front view thereof. Fig. 3 is a detail view similar to Fig. 1 partly in central vertical section and with the movable jaw disengaged Vfrom the work. Fig. 4l is a vperspective view of the pivoted jaw-face plate and the pivot pin therefor, and, Fig. 5 is a perspective view of the movable jaw detached, with its movable rack partially broken away.

Referring more indetail to the drawings, the main shank is illustrated composed of the side bars 10 and 11 spaced apart for providingvthe intermediate slot 12 and having a Xed jaw 13, and a handle member 14 at its opposite end.' It is noted that substantially the entire structure is preferably l i refined-fr manana the handit portions -lmaybe formed of wood -andgsecured uponk opposite #sides` of i the intermediate metal handlevmemberll.

The bar 11 is providedwith `ratchet teeth 16Y for the purpose hereinafter described `while a movable'rack membery 16a is slidably p csitionedk within saidy longitudinal slot f 12 and adapted for-reciprocation irland out of the longitudinal boreor'socket 17 within the handle bymeans of the pinion 18 meshf ing with the said rack teeth'and journaled upon a shaft 19H positioned transversely `tlfOugh the bars of theshanlni'` The movable jaw V20 having a "central opening 21therethrough is slidably-mounted upon saidy shank, being secured loosely by means Tof-fa pin-22 to the'upper end of the yrack 16a, and whereby as will be apparent, a ymovement of said rack bymeans of the pinion 18 carries saidmovable jaw into and out of engagement with the work to kbe operated upon.

` The present constructlon of movable jaw" provides a jaw-face plate 23 of substantially two-thirds the area ofthe engaging face of said jaw andfpivot'edjthereto by means of yterminal downwardly extending a lugs y21 piercedin alinement for the reception of thek pivot pin -25 extendingthrough the same as well as through a transverseperforation'26 .of'said'jawq A dog 27 s provided withflupwardly-extending substantially central lugs y28 by 'means of which-the same is pivoted partially within a socket 29 of the movablej aw and upon the transverse pin 30 positioned through` the same. Said dog "is normally held withjts lpointed end31 outfof engagement withthe rack by means of the eXpansion spring 32` "bearing thereagainst and seating ina socket 33 of the movable jaw, while also, the opposite end of the dog is normally in Contact with oneend of a pin 34 projecting through ythe perforation 35 of theworking face of the movable jaw and vbearing atk its other end beneath the said pivoted face plate 23 for 1101111511137 holding the latter elevated as illustratedin Fig. 3, and thereby positioned at an angle to the remaining facey Forl actively engaging` the wrench-with ythe work such as the bolt nut 37 herein illustrated, it is only necessary to slide the movable-.jaw 20k upwardly on the shank with the portion 36 of the movabley handandy assistedzby'rotating the pinion 18 with the finger or thumb of the operator, and whereupon an engagement ofthe pivoted face 23 with the work results in depressing the outer end of the dog and thereby bringing the pointed tooth 31 thereteeth 16. f j It is evident that the wrench may be disof in engagement with the adjacent tooth of the rack 16, and whereupon as' illustrated in Fig. 1, the automatic locking of the movlable jaw to the work 'is effected.; It will therefore beseenf that a sliding movement of ythe jaw yinto engagement with the workmay be rapidly eiected as well as the autoniatio locking of the movable jaw to, the shank engaged by laterally sliding the same from the work or byl a reverse movement of the wrench-resulting in allowing the spring 32 to ,return .to its normal position, releasing the dogtoo-th 81 from the shank rack 16,

n whereupon the pinionlS may be utilized for j Y the work.

further shifting-the movable jaw away from Having thus fully described the invention, what I claim as new is zf 1. In a wrench, a slidable jaw having a portion of its engaging face cut-away, a face plate adapted for alinement with the face f portion of the jaw n and pivotally-I 40,

mounted on the latter, .saidjaw having a socket, a dog pivoted within said socket to Vsaid movable jaw and a pin extending through an opening inthe slidableV jaw and adapted to engage said 'face plate and dog,

said dog having a pointed end adapted forr automatic engagement with a fixed portion of the wrench when thelatter is in engagementwith the work. 2. A wrench comprising a slotted shank,

a movable jaw. slidable thereon, a rack positioned within the slot of said shank and having said jaw connected to the top thereof, a pinion journaled in said shank in mesh with `said-rack, said movable jaw having its engaging face partially cut-away, having a perforation therethrough and also having a recess therein, a face plate" positioned in said cut-away portion and pivoted to said jaw, a dog pivoted in said recess to said jaw and a pin extending through said perforaton,and resilient means normally depressingthe pointed end of said dog, said dog adapted for automatic engagement with said o shank, upon an engagement of said pivoted plate with` the work to be operated upon.

'3. In combination with a toothed wrench o shank having a longitudinal slot therein, of

ui-movable rack within said slot, a slidable Jaw pivoted tothe upper end of said rack,

' said slidable ljaw having a portion of its engaging face cut-away and having a recess ywith a perforation betweeny said recess and cut-,away portion, a face-plate pivoted to said .jaw and positioned in said cut-away portion, a ydog pivoted upon trunnions Vin parallelism. with the axial pivotof said face plate and a pin extending through said perforation and adapted for engaging the adjacent .surface of said plate, and resilient means socketed in said jaw normally ina-intaining said pin in contact with said plates, one end of saidy dog being pointed and adapted for locking engagement with the Vwrenehproper upon a lseating' of the work upon said pivoted plate.

In testimony whereof I affix' my signature presence of two witnesses.

-FERDINND DEIL lVitnesses: l, i .i f

Louis DEK, VIOSZ Gii'zAs.

Gopesvjof this patent may be Vobtaivncui forrve cents each, b y addressing the f Commissioner of .Iatents,

- y l *'Washringtoinl). C. 

